This Azumarill is a water-type Pokémon owned by Matt.
Azumarill blocked Sapphire's Combusken, Chic, from attacking. Next, Azumarill flooded the cable car and created an air balloon for Matt to breathe. Azumarill laughed with Matt, as his Sharpedo went to attack Sapphire and Flannery. Sapphire managed to snatch one of Sharpedo's fangs and broke through the window, which let the water out of the cable car. Azumarill and Sharpedo went to attack, but were defeated by Sapphire's Lairon, Rono, who used Take Down. Amber and Professor Cozmo found Matt, Azumarill and Sharpedo knocked out.